Fan.



A. Z. SEROR 6L E. J. HOYER.

FAN. VAPPLICATION mm my :2. x915.

@ Patented Oct 16,1917.

ALBERT Z. SERGE AND EDWARD J. HOYER, CHICAGO, ILIINOIS.

FAN.

Specification of Letters Patent. Patented Oct. 16, 1917. 1

Application filed May 17, 1915. Serial No. 28,636.

To all whom it may concern:

Be it known that we, ALBERT Z. Sauce and EDWARD J Hornn, citizens of the United States, and residents of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Fans, of which the following is a specification.

This invention relates to fans.

The object of the invention is to provide a gear-driven, hand-operated rotary fan WlllCh may be conveniently carried in a vest pocket. To this end a fan of our invention comprises the various features, combinations of features and details of construction hereinafter described and claimed.

In the accompanying drawing, in which our invention is fully illustrated,

Figure l is a front view of our improved fan with the vanes or blades extended.

Fig. 2 is a similar view thereof with the vanes or blades folded.

Fig. 3 is an enlarged side of our improved fan with the casing removed.

Fig. 4; isan enlarged sectional view on thei line H of Fig. 3, showing the gearing; an

Fi 5, 6 and 7 are, respectively, enlarged detai sectional views of the fan proper on the lines 5-5 and 66 of Fig. 1 and 7-7 of Fi 5.

Ref errin now to the drawing, 1 designates the an proper, 2 the fan shaft to which the fan 1 is secured, and 3 is a box or casing within which the gearing for driving said fan is inclosed, and which af-,

fords means for holding and operating the fan without interfering with the operative parts thereof.

As regards its usual features-and, excepting-as hereinafter particularly pointed out,

the fan proper 1 is of a usual type and will be read1ly understood from the drawing without a detailed description thereof.

To provide for folding the blades or vanes of said fan into the position shown in Fig. 1, said blades or vanes are mounted on a bushing 4 so as to turn thereonrelative to each other, and to provide for securing said vanes or blades in folded and extended positions, said vanes or blades are provided at their attached ends, one with a head 5 and the other with a groove 6, which, as shown, extend radially on both sides of the centers of said vanes or blades and in such relation that said bead 5 will engage the groove or slot 6 both when said I vanes are folded and when they are 'unfolded. A spring 7 inserted between a I flange of thebushingA and the outer sideof one of the fan blades or vanes will main-'- tain said bead and groove yieldingly in engagement with each other and will also operate to frictionally secure saidfan blades or vanes to said bushing to cause them to turn with said bushing. As shown, said spring 7 consists of a three clip spring provided with a central to receive the bushin 4.

The fan shaft 2 is mounted to rotate freelyin a suitable frame and is adapted to be driven by suitable gearing likewise mounted in said frame. As' shown, said frame consists of spaced plates 8 and 9, which are connected at their ends by cross pieces 10. p

The gearing for driving the fan shaft 2 consists of a plunger 11, which is supported opening adapted by suitable guides on the gearing frame so as to be freely movable endwise. shown, the guides for said plunger consist of a bearing in one of the cross frame pieces 10 to which said plunger is fitted, and a stud 12 secured in the side frame plate 8 which engages a slot 13 formed lengthwise in said plunger.

Formed in one side of said plunger are rack teeth 14: which are connected in train Assn with a pinion 15 secured to the fan shaft.

As shown, said-train of gears comprises a pinion 16 secured to a shaft 17 mounted to rotate .freely in bearings in the side .yieldingly in extended position by means of a spring 21 applied thereto, the relaa spring pawl 20 piv tion being such that depressing said plunger 11 will impart rotation to the fan shaft 2 at a relatively high speed, theispring 21.

operating to again return said extended position,

The box or casing 3 is made as small as plunger to its tor.

project, a an secured to rotate to contain the gearing and ing 33 runs without binding, and pron with holes or openin s I01 the tan shat: and the plunger 11.

In actual praoticeire contemplate making" the gearing frame and gearing of such that it can be contained in a box or ca ing :2 inches long, by 1%; inches Wide and of an inch thick, and the fun, when folded be ing 2 inches long. Also, our improved fa has no separate handle, but is designed to be held and operated by a thunio and fin ger of one hand, one applied to the end of the plunger 11 and the other to the side or end of the casin opposite to that from which said plunger projects, Thus, when folded, said fan may very conveniently be carried in a vest pocket.

The bushing l is adapted to be secured to the projecting end of the fan shaft so as to rotate therewith, being preferally provided with an axial hole or bore ada ;ted to frictionally enga e said shaft.

It Will be observed that a further feature of importance lies in having the operating plunger extend out through the casing at one end thereof, so that the device may be firmly held in one hand (with the thumb on the end of the plunger and one or more finger against the opposite end of the easing) and conveniently and easily operated. It Will be observed also that when the linger or fingers tire, other fingers may be brought into use, f0 that the device may be operated continuously without annoyance from up preciable fatigue on the part of the opera- This construction has also the important advantage that the casing may be reduced to a comparatively small size, prei? erably small enough to-rall Within the area of the field of rotation of the fan, this smallness'of the casing being permitted by reason of the fact that the constiction permits the thumb to be reciprocated in operating the plunger back of the fan blades. Thus permitting the fingers to grasp the casing and the plunger back of the fan blades is further facilitated by locating the plunger near the back Wall of the casing, that is, sul'licient distance back of the fan blades to obtain a firm grasp on the end of the plun er With the thumb Without having the tan blades in their rotation strike the thumb.

' We claim:

1. In a fan, the combination of fan shaft, a pinion thereon, a reciprocating plunger, a rack on said plunger, a spring applied to said plunger for maintaining the same normally extended, gearing in train with the rack on said plunger and the pinion ou-said fan shaft, a casing which incloses said gearing provided with holes through which said plunger and fan sh fan shaft the blades of which are each other to provide and extending said fan blades,

each other to proride for folding and ex tending said blades, and means for locking said blades yieldingly in. folded as Well as extended positions, said means consisting a corresponding interfitting bead and re formed on adjacent faces of the fan biases, and a spring yieldingly pressing the no blades into contact "with each other.

a runner for a rotary fan, the blades of which are pivotally movable relatively to each other to provide for folding and an tending said blades, and means for locking said blades yieldingly in folded and extended positions, said means consisting of an interlitting bead and groove arranged r: dially with respect to the axis of rotation sai'laziis, and, spring means for yield inely pressing the fan blades together.

o. casing, a fan shaft mounted therein and extending through the front Wall thereof, fan

- means in the casing" for normally maintain ing' the plunger yieldingly extended, a rack carried by the inner end of said plunger, and gearing in train With the raclr and the pinion on the tar. shaft for imparting continuous rotary motion to the fan shaft upon reciprocation of the plunger, WlLBIGbY said fan adapted to be supported and operated by a thumb and linger-of one hand.-

6. In a pocket fan, the combination of a on log, a em shaft extending through the front Wall thereof, fan blades mounted on sale shaft and capable o1 relative pivotal movement thereon to provide for nesting e blades when not in use, an operating plunger extending through one end of the casing and reciprocable toward and from the opposite end 0% the casing, and means in the casing for normally pressing the plunger outwardly and for imparting a continuous rotary motion to the fan shaft upon reciprocation of the plunger.

'5. In a poor. fan, the combi ation of a raising, a fan shalt extending Lough the front Wall 21 one end of the casing,

maintainin? said fan bladessubstantially as derotary fan, the blades :1 FE the fan and extending on opposite sides f In a pocket fan, the combination of a preamq the plunger outwardly and for impartinga hontinuous rotary motion to the fan shat when the plunger is reciprocated,

the nested blades being substantially the same length as the crsing and plunger, and the casing and plungerbeing of such size 15 as to be adapted tobe'hld and operated by a thumb and finger of one hand.

In testimony that We claim the foregoing as our invention we aflix our signatures, in the presence of two subscribing witnesses, 20 this 15th day of May, 1915.

ALBERT Z. SEROR. A EDW. J. HOYER. Witnesses:

ALEX. D. KING, J12, F. M. REICHEL. I 

